Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Model	DHT11 / DHT20 / SHT30 / SHT40 Compatible
Output Interface	Digital I2C / Single-wire
Operating Voltage	3.3V - 5V DC
Temperature Range	-40°C to +80°C (varies by model)
Humidity Range	0% to 100% RH
Accuracy	±2% RH, ±0.5°C (SHT40 model)
Response Time	< 8 seconds
PCB Dimensions	15mm x 15mm x 5mm
Indicator	Power LED included
Application	Arduino, Raspberry Pi, IoT Projects

6 reviews

Anonymous

Mar 20, 2026

Rating: 5/5

Reliable for greenhouse monitoring

Using four of these modules in my smart greenhouse setup. They handle the high humidity environment without issues and the data logs look accurate over the past month.

Anonymous

Mar 20, 2026

Rating: 5/5

Excellent precision on the SHT40

Upgraded from DHT11 to the SHT40 option available here. The difference in precision and response time is night and day. Highly recommended for serious projects.

Anonymous

Mar 17, 2026

Rating: 4/5

Solid basic sensor

Works as described. The library support for Arduino is excellent. Just make sure you select the correct model in your code since this listing covers multiple chip types.

Anonymous

Mar 13, 2026

Rating: 4/5

Good value, clear documentation

The module works well right out of the box. The only reason for 4 stars instead of 5 is that the pin spacing is slightly tight for standard breadboards, but jumper wires solve that easily.

Anonymous

Mar 09, 2026

Rating: 5/5

Perfect for my weather station

I bought the SHT30 version for my outdoor weather project. The I2C communication is stable and the readings are consistent with my professional thermometer. Easy to wire up to an ESP32.

Anonymous

Mar 07, 2026

Rating: 5/5

Fast shipping and great performance

Needed these for a school project on home automation. The DHT20 sensor provides quick updates and the indicator light helps confirm power connection instantly.

5 FAQ

Q: Do you provide sample code for Raspberry Pi?

A: Yes, we provide a link to a GitHub repository in the product manual containing Python examples for Raspberry Pi and C++ examples for Arduino.

Q: Can I use this outdoors in the rain?

A: The sensor module itself is not waterproof. You must house it in a waterproof enclosure with ventilation to protect it from direct rain while allowing air flow for accurate readings.

Q: Does this module work directly with 5V Arduino Uno?

A: Yes, the module supports 3.3V to 5V input, so it is fully compatible with the Arduino Uno without needing a level shifter.

Q: Is the I2C address configurable?

A: For most models like the SHT30 and SHT40, the I2C address is fixed by the manufacturer (usually 0x44 or 0x45). Please check the specific datasheet for the chip variant you receive.

Q: What is the difference between the DHT11 and SHT30 options?

A: The DHT11 is a basic, lower-cost sensor with lower accuracy and slower response. The SHT30 offers higher precision, faster response times, and better stability in varying conditions.

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